22200012021 has 32 divisors (see below), whose sum is σ = 32803200000. Its totient is φ = 13241479680.

The previous prime is 22200012019. The next prime is 22200012031. The reversal of 22200012021 is 12021000222.

It is not a de Polignac number, because 22200012021 - 2¹ = 22200012019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22200011988 and 22200012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2757520 + ... + 2765558.

It is an arithmetic number, because the mean of its divisors is an integer number (1025100000).

Almost surely, 2^22200012021 is an apocalyptic number.

It is an amenable number.

22200012021 is a deficient number, since it is larger than the sum of its proper divisors (10603187979).

22200012021 is a wasteful number, since it uses less digits than its factorization.

22200012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9369.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22200012021 its reverse (12021000222), we get a palindrome (34221012243).

The spelling of 22200012021 in words is "twenty-two billion, two hundred million, twelve thousand, twenty-one".